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olga_2 [115]
4 years ago
10

The term solstice translates as "Sun stop." Explain why this translation makes sense from an astronomical point of view. It make

s sense because on that day the Sun ...
Physics
2 answers:
adoni [48]4 years ago
4 0

Answer:

It makes sense because on that the day  the sun stops moving northward and starts moving southward

Explanation:

JulijaS [17]4 years ago
4 0

Answer:

Explanation:

Solstice is gotten from the Latin word 'solstitium'. 'sol' means the sun and 'sistere' means 'to cause to stand or stand still'. From an astronomical point of view, this translation makes sense because this term is used to describe that particular instance when the sun attains its maximum northern point or maximum southern point from the equator of the earth.

When the sun attains northernmost point from the equator, summer solstice occurs and consequently causing the Earth to experience the longest day of the year. Similarly, when the sun attains its southernmost point from the equator, the Earth's proximity to the sun is at its closest and thereby making the Earth to experience the shortest day of the year. Astronomically, this is known as the winter solstice

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microwave ovens rotate at a rate of about 6.3 rev/min. what is this in revolutions per second? (you do not need to enter any uni
levacccp [35]

The microwave ovens rotate at a rate of about 0.105 rev/s.

The microwave rotation is the number of revolutions in a unit of time. To change the unit for angular velocity, assume that the quantity is multiplied by the unit it has. Then change to the desired units. The angular velocity is denoted by ω and has a magnitude of 6.3 rev/min.

ω = 6.3 rev/min

\omega = 6.3 \times \frac{1 \: rev}{1 \: min}

  • 1 minute = 60 seconds
  • The revolution unit didn't change

\omega = 6.3 \times \frac{1 \: rev}{60 \: seconds}

\omega = \frac{6.3 \: rev}{60 \: seconds}

ω = 0.105 rev/s

Learn more about Angular velocity here: brainly.com/question/29344944

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7 0
1 year ago
What is a procedure that could be used to separate a mixture f sugar, black pepper, and pebbles?
Virty [35]
Dissolving can separate the three. Because pepper doesn't mix with water and neither do pebbles.
3 0
4 years ago
4) Why is it important to do a warm up with stretching and also a cool down with
Vesnalui [34]

Answer:

Warming up may help reduce muscle soreness and lessen your risk of injury. Cooling down after your workout allows for a gradual recovery of preexercise heart rate and blood pressure.

Explanation:

8 0
4 years ago
A cannon of mass 6.43 x 103 kg is rigidly bolted to the earth so it can recoil only by a negligible amount. The cannon fires a 7
Nata [24]

Answer:

The velocity of the shell when the cannon is unbolted is 500.14 m/s

Explanation:

Given;

mass of cannon, m₁ = 6430 kg

mass of shell, m₂ = 73.8-kg

initial velocity of the shell, u₂ = 503 m/s

Initial kinetic energy of the shell; when the cannon is rigidly bolted to the earth.

K.E = ¹/₂mv²

K.E = ¹/₂ (73.8)(503)²

K.E = 9336032.1 J

When the cannon is unbolted from the earth, we apply the principle of conservation of linear momentum and kinetic energy

change in initial momentum = change in momentum after

0 = m₁u₁ - m₂u₂

m₁v₁ = m₂v₂

where;

v₁ is the final velocity of cannon

v₂ is the final velocity of shell

v_1 = \frac{m_2v_2}{m_1}

Apply the principle of conservation kinetic energy

K = \frac{1}{2}m_1v_1^2 +  \frac{1}{2}m_2v_2^2\\\\K = \frac{1}{2}m_1(\frac{m_2v_2}{m_1})^2 + \frac{1}{2}m_2v_2^2\\\\K = \frac{1}{2}m_2v_2^2(\frac{m_2}{m_1}) + \frac{1}{2}m_2v_2^2 \\\\K = \frac{1}{2}m_2v_2^2 (\frac{m_2}{m_1} + 1)\\\\2K = m_2v_2^2 (\frac{m_2}{m_1} + 1)\\\\v_2^2 = \frac{2K}{M_2(\frac{m_2}{m_1} + 1)} \\\\v_2^2 = \frac{2*9336032.1}{73.8(\frac{73.8}{6430} + 1)}\\\\

v_2^2 = 250138.173\\\\v_2 = \sqrt{250138.173} \\\\v_2 = 500.14  \ m/s

Therefore, the velocity of the shell when the cannon is unbolted is 500.14 m/s

3 0
3 years ago
A giant log float on a lake while a tiny grain of sand sinks to the bathroom. Explain why a heavy object like the log floats whi
ella [17]

Answer:

Because the log is hollow or is less dense

Explanation:

If a log has little density, it will float. While sand is dense and completely solid, so it will sink.

7 0
3 years ago
Read 2 more answers
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